Apparatus for making glass articles.



J. FORSTER.

APPARATUS FOR MAKING GLASS ARTICLES.

APPLIUATION FILED sBPT.11,1oou.

1 1 06, 1 40. Patented Aug. 4, 1914,

3 SHEETS-SHEET 1. rf E# l M m V "wf- AURRIS PETERS IHUTU-LITHO.WASHINGTON, U C

J. FORSTBR. APPARATUS POR MAKING GLASS ARTICLES. APPLIUATION FILEDSEPT.11.1908.

1,1106, 140. Patented Aug. 4, 1914.

8 SHEETS-SHEET 2.

NO lb PETERS C0, rhUl'O-LITHU.. WASHINGTON. D C

J. PORSTBR. APPARATUS FOR MAKING GLASS ARTICLES. APPLICATION FILEDsnPT.11,19oa.

1,106,140. Patented Aug.4,1914

3 SEIVIBTS-BHBET 3.

JOHN FORSTER, 0F ST. HELENS, ENGLAND.

ABPARATUS FOR MAKING GLASS ARTICLES.

Specification. of Letters Patent.

Patented aug. 4, 1914.

Application filed September 11, 1908. Serial No. 452,637.

To all wimmt'l: 17mg/ concern Be it known that I, JOHN Fonsrnn, asubject of the King of England, residing at St. Helens, in the county ofLancaster, England, have invented certain new and useful Improvements inApparatus for Making Glass Articles, of which the following is aspecification.

This invention relates to apparatus for making glass articles and hasparticular reference to the making of glass cylinders from whichwindow-glass is l afterward made, although it is not restricted thereto.

The primary object of the invention is to dispense with human blowingand its attendant mouth and lung diseases which are frequently followedby early physical deterioration.

The chief feature of this invention is that in the mechanical blowing ofglass the blowpipe is swung and at the same time supplied with air underpressure.

Other features of this invention will be evident from the followingdescription taken in connection with the accompanying drawings whichillustrate, by way of example, apparatus for carrying this inventioninto effect, and in which Figure 1 is a front elevation of the machine;Fig. 2 a plan of the same; Fig. 3 is a section on the line 3-3 of Fig.2; Fig. t a section of the blow-pipecarrier on the line 4 4 of Fig. 2;Fig. 5 is a section of the valve for controlling the airsupply; Fig. 6 asection of the connector for connecting the blow-pipe to the air-supply.

Like letters indicate like parts throughout the drawings.

Referring to Figs. 1 to It, the apparatus used for forming the cylinderafter a bulb has been made will first be described. Two girders A A haveresting upon them a number of frames A1 carrying two rails Al mounted atthe same height. A rail A3 is mounted above, being supported by bracketsA4 attached to the frames A1. A carrierframe B for the blow-pipe is madeof steel tubing B1. The carrier B is provided with axles B2 and B3.Vheels B4 are mounted on the axle B2 and on the axle B3. The wheels BAkrun on the rails A2 and the rail A3 engages the two wheels shown Vat theupper art of Fig. 2. The axle B2 carries a vertical bracket C and thisaxle being rotatable the bracket C is also rotatable for a purpose vtobe described. Two rods C1 C1 are bolted to the bracket C and to abracket C. Bolted to the rods C1 is a member C2 having a projectingpiece C3 which normally rests on one of the rails A2 as shown. The rodsC1 support pipes C4 and C, these being connected together through pipesCu and C7 between which is an air-controlling valve D and a stop-cockCB. The pipe C* has connected to it a pipe C9 which is connected to apipe C1", the union for the latter connection being supported on abracket C carried on one of the tubes B1. The pipe C1" is connected by apipe C12 to a suitable source of compressed air. The pipes areconnected, as just referred to, by means of unions allowing them to movein vertical planes relatively to each other. The pipe C has connected toit a pipe C1, the connection being such that with the parts in thepositionshown in Fig. E2 the pipe C13 can move about a vertical axis.The pipe C1" carries a connector E, hereinafter fully described, adaptedto receive the end of the blow-pipe F. One end of the axle B2 carries aplate G' having attached to it a bracket G1. On this bracket G1 aremounted two rollers G2 on which the blow-pipe can rest and he rotated.The plate G also supports a bracket G arranged to engage the upper sideof the blow-pipe, this being best shown in Fig. 4t. The part of theblow-pipe between two collars Fl on it fits into a slot C15 in thebracket C14 where it is held by a member C1 adapted to slide against theaction of a spring (not shown in the drawings) and having an operatinghandle C17. It will be evident that with the arrangement of parts asdescribed above, the blow-pipe can be tipped about the axis of the axleB2 and swung in the manner of a pendulum, while at the same time beingrotated about its own axis and havingair supplied to it through thepipes leading from the source to the connector E. The rails A2 and A3run right. up to the heating or re-heating furnace H and at the side ofthe rails at which the blow-pipe is mounted a pit is provided. At theend of the rails away from the furnace. a cushion-stop or buffer A5 isarranged. This cushion-stop consists of a U-shaped member arranged toengage the axle Bs and mounted on a rod A6 sliding in a bracket A". Aspring A8 surrounds part of the rod A6 and has one end engaging with thebracket A7 and the other end with the U-shaped member.

Referring to F ig. 5, the air-controlling valve D is shown in section.The valve proper D1 is arranged in the tube or casing D2, the latterhaving connecting pipes D3 and DeL for joining it to the pipes Cs and C7respectively. The valve D1 rests on a valveseating D5 and is mounted ona stem or spindle DG the outer end D7 of which is provided with a handleD8. The spindle DG passes through a bushing D9 and between this bushingand the enlarged portion of the spindle D7 is arranged a spring D10. Thevalve D1 is provided on its periphery with corrugations D11 which allowair to pass it when the operator raises the valve oill its seating bypressing on the handle DS against the action of the spring D10.

Referring to Fig. 6 the connector E which receives the end of theblow-pipe F, com` prises a cup-shaped member El across the mouth ofwhich is arranged a rubber ring E2. The ring E2 is held in position by ametal ring E3 attached by screws to the cupshaped member El. The ring isof such internal diameter that the flanged end of the blow-pipe can beforced through to the position as shown in Fig. 6, when a joint isformed which is air-tight, but which per` mits of the blow-pipe beingrotated about its own axis. rlhe cup-shaped member El has projectingfrom it a portion E4 in the form of a conical plug, and this ts into acasing E5 which screws on to the pipe C13. The plug E1 is held inposition by a nut EV'.

The apparatus is employed in the following manner for blowing glasscylinders, such as are required for forming window glass. The glass isgathered on the end of the blow pipe from the glass tank and ismanipulated in any manner, and the blow pipe is then transferred to themachine to be blown. The machine bein-g at rest with its front end swungover to the rear of the track for con'- veniently taking hold of theblow-pipe and glass bulb, the blow-pipe is fixed in position asdescribed above. The operator can now swing or rotate or move forward orbackward the blow-pipe and bulb and he at once proceeds to move the bulbforward until the glass enters the glass-tank or re-heating furnace H.lVhen suiciently heated it is withdrawn and swung like a pendulum androtated as desired, air being admitted while the cylinder is being drawnand blown.

This operation is repeated as often as necessary until the cylinder isdrawn out parallel and of even thickness when the bull end of thecylinder has a piece of hot metal applied and a hole cut in the usualway. lt is again re-heated and at the proper time withdrawn and swunginto a vertical position. T he rotary motion given by the operatorcauses the bull end to fall out parallel with the cylinder owing tocentrifugal force, and in this way the cylinder is completed and takenfrom the machine by an ordinary carrier to the stands.

lil/lith the apparatus and in the manner described above, glasscylinders can be made without any human blowing. Further the output isgreater than with human blowing in the ordinary way.

lit is obvious that various modifications may be made in the method ofcarrying this invention into eliect. The construction and method ofoperation described above is given merely by way of example, having beenfound particularly suitable in practice.

vWhat l claim as my invention and desire to secure by Letters Patent iszln apparatus for manufacturing glass, a reciprocating carriage, a framepivotally connected to said carriage comprising a plurality of bracketsand a plurality of rods connecting' said brackets to each other, aplurality of air pipes connected to said frame in parallelism with eachother and arranged to move therewith, an air supply pipe connected toone of the last mentioned pipes, right-angle pipes connecting' the pipesin parallelism with each other, there being a connection between thelast mentioned pipes, a controlling valve in said connection, ablow piperotatably mounted in the frame, and a connector connected to one end ofthe blow pipe and one of the pipes in par allelism with each other, saidpipe connections being arranged to supply air to the blow pipe;substantially as described.

In testimony whereof l have signed my name to this specification in thepresence of two subscribing witnesses.

J0? N FURSTEl-.

Witnesses ALrrnD J. Boum, HARRY B. BRIDGE.

Copies of this patent may be obtained for ve `cents each, by addressingthe 7 Commissioner of Patents.

Washington,

